More than 2,000 runners have been punishing themselves on this year's 'Grizzly' along Devon's Jurassic Coast. It is described as one of the toughest multi-terrain challenges out there and puts competitors through 20 miles of hills, bogs and three stretches of undulating pebble beach on a loop starting and finishing in the town of Seaton.
Musicians play at certain points along the course including a group of drummers, entertaining the spectators and beating out a rhythm for the runners.
Today's warm sunshine was in marked contrast to last year's downpour. This is the 27th running of this gruelling challenge.